midbrain
Also known as the mesencephalon, the middle division of
the embryonic brain, which includes the tectum
and tegmentum. The midbrain is considered
to be part of the brainstem. It is involved
in functions such as vision, hearing, eye
movement, and body movement. The reticular
formation in the midbrain collects input from higher brain centers and
passes it to motor neurons. The substantia
nigra helps "smooth" out body movements; in Parkinson's
disease, this region is damaged.
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AND PHYSIOLOGY
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